LT1-LT4 Modifications 1993-97 Gen II Small Block V8

HELP! Flooding Out!

Thread Tools
 
Search this Thread
 
Old Mar 19, 2011 | 12:50 PM
  #1  
Big Bad Bud's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Aug 2010
Posts: 140
Likes: 0
From: Carson City, NV
Unhappy HELP! Flooding Out!

I had the car running good and one day I went to start it and it would not. I started smelling fuel and it was just dumping. I thought since it had sat for a while, maybe it was a stuck injector. I unplug one at a time and when I got to #7 it fired right up and ran. I pluged it in and flooded! So I replace injectors and its still doing the same thing! HELP?
Reply
Old Mar 19, 2011 | 02:42 PM
  #2  
Big Bad Bud's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Aug 2010
Posts: 140
Likes: 0
From: Carson City, NV
Default

Anyone? Please? Nice weekend! Wanna Drive it!
Reply
Old Mar 21, 2011 | 10:08 PM
  #3  
pro94lt's Avatar
TECH Apprentice
 
Joined: May 2010
Posts: 333
Likes: 1
From: Arkansas
Default

I'm a little confused but... if your car is "flooding out" it's and you've replaced the injectors you've either got a real bad exhaust leak, your leting unmetered air in the intake, or your plugs are just bad. how are your plugs?
Reply
Old Mar 21, 2011 | 10:50 PM
  #4  
Fazz73jr's Avatar
TECH Regular
iTrader: (3)
 
Joined: May 2010
Posts: 432
Likes: 0
From: Fontana, Ca
Default

id look for a short in the #7 injector wires.
Reply
Old Mar 21, 2011 | 11:53 PM
  #5  
Big Bad Bud's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Aug 2010
Posts: 140
Likes: 0
From: Carson City, NV
Default

Brand new plugs! And I think it might be my pcm. I reprogramed it just for giggles and it fired right up! I ran it for an hour then drove 30 miles and its running perfect! Anyone ever have an issue with the PCM like that?
Reply
Old Mar 25, 2011 | 07:35 PM
  #6  
Big Bad Bud's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Aug 2010
Posts: 140
Likes: 0
From: Carson City, NV
Default

Still having the same orig. problem! It runs good for days then it won't start and smells reallllly rich! I reprogrammed the PCM and it will start right up and run good! Anyone????

Reply
Old Mar 25, 2011 | 07:42 PM
  #7  
gregrob's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Sep 2008
Posts: 5,130
Likes: 4
From: 6,000+ feet
Default

spray it
Reply
Old Mar 25, 2011 | 07:43 PM
  #8  
Big Bad Bud's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Aug 2010
Posts: 140
Likes: 0
From: Carson City, NV
Default

Originally Posted by gregrob
spray it
I'm gonna SPRAY you!
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Mar 25, 2011 | 07:46 PM
  #9  
gregrob's Avatar
TECH Senior Member
iTrader: (8)
 
Joined: Sep 2008
Posts: 5,130
Likes: 4
From: 6,000+ feet
Default

Gay..
Reply
Old Mar 25, 2011 | 08:02 PM
  #10  
nitrous2fast's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Dec 2010
Posts: 1,084
Likes: 0
From: Oklahoma
Default

Originally Posted by Big Bad Bud
I'm gonna SPRAY you!


Humm... when you reflash the computer the fuel trims are erased and new ones have to be made. Maybe your o2 is messed up on that bank. And when you start it up after flashing the computer inputs the fueling as required by the mass air until closed loop is in effect and short trims are now being made. Now after a few days the short trims are constantly showing the same fueling changes to get it to be placed in the long terms. And BAM! now when starting if in open loop or closed loop it will use the long term trims which are too rich.

or it could be something else like an injector messed up. lol
Reply
Old Mar 25, 2011 | 08:20 PM
  #11  
Big Bad Bud's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: Aug 2010
Posts: 140
Likes: 0
From: Carson City, NV
Default

Originally Posted by nitrous2fast


Humm... when you reflash the computer the fuel trims are erased and new ones have to be made. Maybe your o2 is messed up on that bank. And when you start it up after flashing the computer inputs the fueling as required by the mass air until closed loop is in effect and short trims are now being made. Now after a few days the short trims are constantly showing the same fueling changes to get it to be placed in the long terms. And BAM! now when starting if in open loop or closed loop it will use the long term trims which are too rich.

or it could be something else like an injector messed up. lol
Thanks for the input! I will change out the 10 year old O2's and see what happens. Just go with Boush or should I go better?
Reply
Old Mar 25, 2011 | 08:46 PM
  #12  
nitrous2fast's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Dec 2010
Posts: 1,084
Likes: 0
From: Oklahoma
Default

NEVER BOSCH!!! get a set of delco's or NTK's. actually anything but bosch...
Reply




All times are GMT -5. The time now is 04:06 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 18:13:20


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE